Vise



L. P. AU BARD VISE Filed April 19, 1921 Patented May 19, 1925.

UNITED STATES LOUIS PIERRE AUBARD, OF BILLANCOURT, FRANCE.

vIsn.

Application filed April 19, 1921. fierial No. 482,643.

To all whom it may concern:

Be it known that I, LoUIs PIERRE AUBARD, a citizen of the French Republic, residing at'lriillancourt, Seine, in the Republic of France, have invented new and useful Improvements in Vises, of which the following is a specification.

The advantages afiorded by vises. with parallel jaws as compared with Vises with pivoted branch are generally recognized, as in fact the maximum opening distance is greater while at the same time the work is held in a more rational and energetic manner. But in order to provide for a strong and substantial construction for this tool, it has been hitherto made either of cast or wrought iron, but for this reason such devices had a considerable weight'and were relatively expensive. The height of the jaws above the operating screw must also be limited in order to avoid reducing the strength of the tool, and this condition has the etlfect of limiting its use to pieces of work which do not exceed a certain size.

The vis with parallel jaws according to my invention possesses all the advantages of this class of tools while obviating the above-mentioned diawbacks.v Its body is constructed entirely of pressed steel welded it necessary by the autogenous process, thus possessing a considerable lightness and at the same time'a great strength and solidity, whereby it may be given more suitable dimensions in order to increase the scope of its use.

By reason of its light weight it is easily handled and transported, and it can be very rapidly mounted in place. The mounting is still further facilitated by the fact that the tool can be almost instantly transformed into a portable vise secured by'a claw, which may be mounted in all suitable positions.

The accompanying drawings show by way of example an embodiment of my invention. p v

Fig. 1 is an elevational view of the vise.

Fig. 2 is a planview of the same.

Fig. 3 is a sectional view of the stationary portion on the line A--B-CD Fig. 1.

Fig. i is a plan view of the removable bent arm shown in front elevation inFig. 1. whereby the tool may be transformed into a portable vise.

The vise has the form which is usually employed for this class of tools, and is constituted by two principal parts, a fixed portion a, and a movable portion Z) whlchmay be displaced by the screw 0 passing through the nut (Z and operated by the usual rod or handle f. The two branches (1., I) of this vise are constituted exclusively of sheet steel constructed in the determined shape and size by the pressing operation and if necessary by autogenous welding. The two branches a and b have a square cross-section atthe lower part thereof; The branch (1 comprises the four walls g, 72., d, j while th movable branch comprises the three walls 9, It, i. The stationary branch (4 serves as a guide for the movable portion. The upper part of the branch (1. is likewise hollow and is provided with the ribs Z which confer upon it the proper strength.

The two jaws of the vise are provided with the shaped clamping portions m which are constructed of tempered steel and secured by the screws a to the angle portion forming the corresponding end of each jaw. t is thus an easy matter to replace these clamping portions when worn out. In the known vises, th nut is cast with the branch which supports the same, but in the vise according to my invention the nut (i is independent and is secured to the lower wall y' of the branch (L by the square tenon 0 and the two screws 2 In this manner the nut may also be readily repaired or replaced.

The vise is secured to the WOIi bench by th two lugs 7" having therein the apertures r, with which the branch or, is provided. In case it is desired to. move the tool, it may be secured to any suitable board or support by means of the bent arm 3 provided with the claw t which is operated by means of the screw it. The said bent arm is provided with the lugs :12 which may be inserted through an aperture in the bottom j of the branch (0 and which are causedto bear upon this bottom part. The bent arm 3 is secured in position by a'screw o, as shown in Fig. 1, thus transforming the tool into a portable vise.

As thus constructed, the vise herein represented constitutes a tool having a great lightness as well as possessing a solidity and strength, which much exceed what is to be found in the usual heavy tools in cast or wrought iron. It also atiords a very wide opening ot the. jaws, and is adapted for use throughout a wide range of operations.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A vise with parallel jaws comprising a stationary branch and a movable branch formed of steel sheets, strengthening ribs formed of steel sheets on the walls of said branches, prismatic hollow shanks made of steel sheets, integral with said branches, the one shank being adapted to slide within the other.

2. A vise with parallel jaws comprising a stationary branch and a movable branch formed of steel sheets, prismatic shanks made of welded steel sheets, the one shank being adapted to slide within the other and the lower wall of the stationary shank being provided with an opening, a removable angular bracket, lugs integral with said bracket and adapted to engage into the said opening, a screw for securing the said bracket to the stationary shank and a clamping screw carried by the said bracket.

In testimony whereof I have signed my name to this specification.

LOUIS PIERRE AUBARD. 

